test/libcxx/containers/sequences/vector/db_cfront.pass.cpp

//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

// <vector>

// Call front() on empty const container.

// UNSUPPORTED: libcxx-no-debug-mode

// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DEBUG=1
#define _LIBCPP_ASSERT(x, m) ((x) ? (void)0 : std::exit(0))

#include <vector>
#include <cassert>
#include <iterator>
#include <exception>
#include <cstdlib>

#include "test_macros.h"

int main(int, char**) {
  typedef int T;
  typedef std::vector<T> C;
  const C c;
  assert(c.front() == 0);
  assert(false);

  return 0;
}